package com.example.courseselectionsystemconsume.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

@Mapper
public interface CourseDao {
    
    //选课   之  减少课程数量   参数：课程id  做条件
    int upCourseAmount(@Param("id") Integer id);
}
